Assignee: The United States of America as represented by the United States Environment Protection Agency

Location: Washington, DC
No. of patents: 4

Number	Title	Issue Date
7320753	Anaerobic digester system for animal waste stabilization and biogas recovery An ambient anaerobic digester system for anaerobic digestion of animal waste with biogas production and recovery is provided. The anaerobic digester system includes a substantially flexible bladder for anaerobically digesting the animal waste with biogas production ...	01/22/2008
7024858	Multi-crankshaft, variable-displacement engine An internal combustion engine for a vehicle provides variable displacement by selectively driving one or more engine crankshafts mounted within a single unitary engine block. In several embodiments the crankshafts are connected to a common output shaft with a one-wa...	04/11/2006
6829839	Electronic caliper for mouse ear and rat foot pad edema measurement An electronic caliper includes fixed and movable caliper arms mounted on a common housing and having jaws at their free ends. One of the caliper arms is attached to the housing through a pivot pin for pivoting motion between a contact position and a disengaged posit...	12/14/2004
6681789	Fuel tank ventilation system and method for substantially preventing fuel vapor emissions A fuel tank ventilation system and method are provided for substantially preventing fuel vapor emissions without significant increase in tank pressure. The system and method include a flexible bladder within the fuel tank that alternately deflates and inf...	01/27/2004

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